345212616 has 64 divisors (see below), whose sum is σ = 993484800. Its totient is φ = 97915968.

The previous prime is 345212561. The next prime is 345212617. The reversal of 345212616 is 616212543.

It is not an unprimeable number, because it can be changed into a prime (345212617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15961 + ... + 30743.

It is an arithmetic number, because the mean of its divisors is an integer number (15523200).

Almost surely, 2^345212616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345212616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (496742400).

345212616 is an abundant number, since it is smaller than the sum of its proper divisors (648272184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345212616 is a wasteful number, since it uses less digits than its factorization.

345212616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14938 (or 14934 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 345212616 is about 18579.8981697963. The cubic root of 345212616 is about 701.5019559735.

The spelling of 345212616 in words is "three hundred forty-five million, two hundred twelve thousand, six hundred sixteen".